[INFO] fetching crate uart8250 0.5.0...
[INFO] testing uart8250-0.5.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate uart8250 0.5.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate uart8250 0.5.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uart8250 0.5.0
[INFO] finished tweaking crates.io crate uart8250 0.5.0
[INFO] tweaked toml for crates.io crate uart8250 0.5.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7b03d88f52cef0af98d2c4e22a175516a3e47ae35bbbdbb8d24acfdc2dfd06e
[INFO] running `Command { std: "docker" "start" "-a" "e7b03d88f52cef0af98d2c4e22a175516a3e47ae35bbbdbb8d24acfdc2dfd06e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b03d88f52cef0af98d2c4e22a175516a3e47ae35bbbdbb8d24acfdc2dfd06e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b03d88f52cef0af98d2c4e22a175516a3e47ae35bbbdbb8d24acfdc2dfd06e", kill_on_drop: false }`
[INFO] [stdout] e7b03d88f52cef0af98d2c4e22a175516a3e47ae35bbbdbb8d24acfdc2dfd06e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e1bc7ea11a609a2c660adc724a687fc891dc6920c9ff2e66e2f1e80ada2d6c9
[INFO] running `Command { std: "docker" "start" "-a" "8e1bc7ea11a609a2c660adc724a687fc891dc6920c9ff2e66e2f1e80ada2d6c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling uart8250 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "8e1bc7ea11a609a2c660adc724a687fc891dc6920c9ff2e66e2f1e80ada2d6c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1bc7ea11a609a2c660adc724a687fc891dc6920c9ff2e66e2f1e80ada2d6c9", kill_on_drop: false }`
[INFO] [stdout] 8e1bc7ea11a609a2c660adc724a687fc891dc6920c9ff2e66e2f1e80ada2d6c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b02ca47b3d945b0fa4328d2ff63a4144a06479b728e475e1a7e7e774b6f44bf8
[INFO] running `Command { std: "docker" "start" "-a" "b02ca47b3d945b0fa4328d2ff63a4144a06479b728e475e1a7e7e774b6f44bf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling uart8250 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "b02ca47b3d945b0fa4328d2ff63a4144a06479b728e475e1a7e7e774b6f44bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02ca47b3d945b0fa4328d2ff63a4144a06479b728e475e1a7e7e774b6f44bf8", kill_on_drop: false }`
[INFO] [stdout] b02ca47b3d945b0fa4328d2ff63a4144a06479b728e475e1a7e7e774b6f44bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 933b93b3324a3b8fd045cf2b77d34ccdc6a039d568d8d87cd0ebd2dfc43daff5
[INFO] running `Command { std: "docker" "start" "-a" "933b93b3324a3b8fd045cf2b77d34ccdc6a039d568d8d87cd0ebd2dfc43daff5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/uart8250-b81a20fd33d1dabf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests uart8250
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "933b93b3324a3b8fd045cf2b77d34ccdc6a039d568d8d87cd0ebd2dfc43daff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "933b93b3324a3b8fd045cf2b77d34ccdc6a039d568d8d87cd0ebd2dfc43daff5", kill_on_drop: false }`
[INFO] [stdout] 933b93b3324a3b8fd045cf2b77d34ccdc6a039d568d8d87cd0ebd2dfc43daff5